mirror of
https://github.com/TorqueGameEngines/Torque3D.git
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85 lines
3.2 KiB
C++
85 lines
3.2 KiB
C++
//-----------------------------------------------------------------------------
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// Copyright (c) 2012 GarageGames, LLC
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//-----------------------------------------------------------------------------
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#ifndef _SFXMEMORYSTREAM_H_
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#define _SFXMEMORYSTREAM_H_
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#ifndef _SFXSTREAM_H_
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#include "sfx/sfxStream.h"
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#endif
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#ifndef _TSTREAM_H_
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#include "core/stream/tStream.h"
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#endif
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#ifndef _RAWDATA_H_
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#include "core/util/rawData.h"
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#endif
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/// A stream filter that converts sample packets from its source stream
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/// to a continuous sample stream. Useful for feeding sound from a source
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/// that pushes sample data in discrete packets.
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///
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/// @note For the SFXMemoryStream to allow a reset(), the source input
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/// stream must implement IResettable.
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class SFXMemoryStream : public SFXStream,
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public IInputStreamFilter< U8, IInputStream< RawData* >* >
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{
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public:
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typedef SFXStream Parent;
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protected:
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///
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SFXFormat mFormat;
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/// Total number of samples in the stream. If this is U32_MAX, the stream
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/// is considered to be of indefinite size.
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U32 mNumSamplesTotal;
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/// Number of samples left to be read from stream. Locked to U32_MAX for
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/// stream of indefinite size.
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U32 mNumSamplesLeft;
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/// The current sample data packet.
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RawData* mCurrentPacket;
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/// Read offset in the current sample data packet.
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U32 mCurrentPacketOffset;
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public:
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///
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SFXMemoryStream( const SFXFormat& format, SourceStreamType* stream, U32 numSamples = U32_MAX );
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// SFXStream.
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const SFXFormat& getFormat() const { return mFormat; }
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U32 getSampleCount() const { return mNumSamplesTotal; }
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U32 getDataLength() const { return ( mNumSamplesTotal == U32_MAX ? U32_MAX : mFormat.getDataLength( getDuration() ) ); }
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U32 getDuration() const { return ( mNumSamplesTotal == U32_MAX ? U32_MAX : mFormat.getDuration( mNumSamplesTotal ) ); }
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bool isEOS() const { return ( mNumSamplesLeft != 0 ); }
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void reset();
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U32 read( U8 *buffer, U32 length );
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};
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#endif // !_SFXMEMORYSTREAM_H_
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